Classifying software is not easy. I'm trying to give a clear list of the software used here
Depending on the task, the range of usable software is often tied to a specific operating system. Therefore I give the corresponding platform.
I have to say in advance that I subscribe to my audio books from Audible and due to copy protection I am forced to protect my acquired property by converting it into MP3 format.
The software previously used had the disadvantage that the process only worked manually, i.e. only one audio book could be converted at a time. I have therefore created a small Python program that uses the download directory of the Audible app (from Windows 10) as input and converts all the audio books there in one go. This also simplifies follow-up with MP3Tag. If you are interested, the program can be downloaded from Gitlab. Python can be installed from the Microsoft Store.
The reverse direction, i.e. from MP3 to M4B, can also be done in this way, the whole thing can be downloaded here.
* This is where MobaXterm comes into play as a new addition. Installation and configuration are described in the corresponding how-to